CSS Minifier

Minify CSS - paste, upload, or drag & drop.

{} CSS Minifier Interactive Tool
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Minify CSS right in your browser, with three ways to get your stylesheet in:

  • Paste or type CSS into the left pane - output updates live.
  • File button - pick a .css file from disk and it is loaded and minified instantly.
  • Drag & drop - drop a CSS file anywhere on the input panel.

The minifier strips comments, collapses whitespace, removes spaces around structural characters and drops trailing semicolons - while keeping string literals and url() values untouched. The status bar shows the exact size saving (before → after chars, −%).

Everything runs locally - your CSS never leaves your device.